diff options
author | 2010-01-18 09:34:43 +0000 | |
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committer | 2010-01-18 09:34:43 +0000 | |
commit | e738b79785852050ce8b83e369a7fc4dd46a071b (patch) | |
tree | 1ac39e9f40790b375c57fea4e5d56ca8d132babc /src/emu/machine/pd4990a.c | |
parent | 3f87f47a2ecdccb9d9627d0d52b76f262becb949 (diff) |
Correct a long-standing design flaw: device configuration state
is now separate from runtime device state. I have larger plans
for devices, so there is some temporary scaffolding to hold
everything together, but this first step does separate things
out.
There is a new class 'running_device' which represents the
state of a live device. A list of these running_devices sits
in machine->devicelist and is created when a running_machine
is instantiated.
To access the configuration state, use device->baseconfig()
which returns a reference to the configuration.
The list of running_devices in machine->devicelist has a 1:1
correspondance with the list of device configurations in
machine->config->devicelist, and most navigation options work
equally on either (scanning by class, type, etc.)
For the most part, drivers will now deal with running_device
objects instead of const device_config objects. In fact, in
order to do this patch, I did the following global search &
replace:
const device_config -> running_device
device->static_config -> device->baseconfig().static_config
device->inline_config -> device->baseconfig().inline_config
and then fixed up the compiler errors that fell out.
Some specifics:
Removed device_get_info_* functions and replaced them with
methods called get_config_*.
Added methods for get_runtime_* to access runtime state from
the running_device.
DEVICE_GET_INFO callbacks are only passed a device_config *.
This means they have no access to the token or runtime state
at all. For most cases this is fine.
Added new DEVICE_GET_RUNTIME_INFO callback that is passed
the running_device for accessing data that is live at runtime.
In the future this will go away to make room for a cleaner
mechanism.
Cleaned up the handoff of memory regions from the memory
subsystem to the devices.
Diffstat (limited to 'src/emu/machine/pd4990a.c')
-rw-r--r-- | src/emu/machine/pd4990a.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/src/emu/machine/pd4990a.c b/src/emu/machine/pd4990a.c index 08ca627db58..cf6efd601c5 100644 --- a/src/emu/machine/pd4990a.c +++ b/src/emu/machine/pd4990a.c @@ -82,7 +82,7 @@ struct _upd4990a_state INLINE FUNCTIONS ***************************************************************************/ -INLINE upd4990a_state *get_safe_token(const device_config *device) +INLINE upd4990a_state *get_safe_token(running_device *device) { assert(device != NULL); assert(device->token != NULL); @@ -104,7 +104,7 @@ INLINE UINT8 convert_to_bcd(int val) upd4990a_increment_month -------------------------------------------------*/ -static void upd4990a_increment_month( const device_config *device ) +static void upd4990a_increment_month( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); @@ -127,7 +127,7 @@ static void upd4990a_increment_month( const device_config *device ) upd4990a_increment_day -------------------------------------------------*/ -static void upd4990a_increment_day( const device_config *device ) +static void upd4990a_increment_day( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); int real_year; @@ -185,7 +185,7 @@ static void upd4990a_increment_day( const device_config *device ) upd4990a_addretrace -------------------------------------------------*/ -void upd4990a_addretrace( const device_config *device ) +void upd4990a_addretrace( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); @@ -258,7 +258,7 @@ READ8_DEVICE_HANDLER( upd4990a_databit_r ) upd4990a_readbit -------------------------------------------------*/ -static void upd4990a_readbit( const device_config *device ) +static void upd4990a_readbit( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); @@ -300,7 +300,7 @@ static void upd4990a_readbit( const device_config *device ) upd4990a_resetbitstream -------------------------------------------------*/ -static void upd4990a_resetbitstream( const device_config *device ) +static void upd4990a_resetbitstream( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); @@ -313,7 +313,7 @@ static void upd4990a_resetbitstream( const device_config *device ) upd4990a_writebit -------------------------------------------------*/ -static void upd4990a_writebit( const device_config *device , UINT8 bit ) +static void upd4990a_writebit( running_device *device , UINT8 bit ) { upd4990a_state *upd4990a = get_safe_token(device); if (upd4990a->bitno <= 31) //low part @@ -326,7 +326,7 @@ static void upd4990a_writebit( const device_config *device , UINT8 bit ) upd4990a_nextbit -------------------------------------------------*/ -static void upd4990a_nextbit( const device_config *device ) +static void upd4990a_nextbit( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); ++upd4990a->bitno; @@ -346,7 +346,7 @@ static void upd4990a_nextbit( const device_config *device ) upd4990a_getcommand -------------------------------------------------*/ -static UINT8 upd4990a_getcommand( const device_config *device ) +static UINT8 upd4990a_getcommand( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); //Warning: problems if the 4 bits are in different @@ -361,7 +361,7 @@ static UINT8 upd4990a_getcommand( const device_config *device ) upd4990a_update_date -------------------------------------------------*/ -static void upd4990a_update_date( const device_config *device ) +static void upd4990a_update_date( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); @@ -378,7 +378,7 @@ static void upd4990a_update_date( const device_config *device ) upd4990a_process_command -------------------------------------------------*/ -static void upd4990a_process_command( const device_config *device ) +static void upd4990a_process_command( running_device *device ) { upd4990a_state *upd4990a = get_safe_token(device); @@ -412,7 +412,7 @@ static void upd4990a_process_command( const device_config *device ) upd4990a_serial_control -------------------------------------------------*/ -static void upd4990a_serial_control( const device_config *device, UINT8 data ) +static void upd4990a_serial_control( running_device *device, UINT8 data ) { upd4990a_state *upd4990a = get_safe_token(device); |